My wife's hair dresser's husband has a stroker big block 72 Cuda and asked me to install a Hotchkis TVS kit for him PN # 80112. Looks like pretty major installation, but well within my skill level. I also think I should tell him to get the rear leaf spring shackle kit, new axle U bolts, some spring hanger shim plates, and the matching shocks. What I don't know is how long does this installation usually take? The car looks good on the outside, fresh paint and all. But he just bought it last summer, never looked underneath. From what I remember, it wasn't all rotting out, but it is a 40 year old car. I'm guessing between 15 and 20 hours, allowing for rust and whatever fabrication. Am I close? Is this a good kit for the money? I have never had to do any major upgrades like this before. Ask me about going straight...